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https://www.selleckchem.com/products/vx-561.html A horizontal subsurface flow constructed wetland (HSSF-CW) was evaluated for the remediation of synthetic acid mine drainage (AMD) using an organic-rich substrate (cow manure and bamboo chips) planted with common cattail. The synthetic AMD simulated the source AMD generated in North Eastern Coalfield of Assam, India. The synthetic AMD was highly acidic (pH  aluminium (59.7%). Toxicity Characteristic Leaching Procedure test (TCLP) study suggested very negligible leachability of chromium for safe disposal. Common cattails exhibited poor bioaccumulation and translocation for all heavy metals except for manganese and cobalt. Tetracycline and Cr(VI) as non-biodegradable environmental contaminants have attracted increasing attention because of their chronic toxicity. In this regard, the environmentally friendly Z-scheme photocatalytic decontamination system has been widely used for contaminant treatment. Herein, a novel 3D Z-scheme α-FeOOH/FeS2 composite photocatalyst was successfully synthesized for the first time via a simple one-pot hydrothermal method. X-ray diffraction (XRD) and Fourier-transform infrared (FT-IR) analyses and high-resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) demonstrated that the O component of the heterogeneous nanostructures formed by the Fe-O-Fe linkages in α-FeOOH was replaced by S to generate Fe-S-Fe linkages in the resulting FeS2. As expected, the novel 3D Z-scheme α-FeOOH/FeS2 composites exhibited remarkable photocatalytic activity for Cr(VI) reduction and tetracycline degradation compared to pure α-FeOOH. Photoluminesence (PL) measurement and electrochemical impedance spectroscopy (EIS), as well as density functional theory (DFT) calculations, suggested that the enhanced photocatalytic activity of the Z-scheme α-FeOOH/FeS2 composite can be attributed to the improved photo-absorption properties and the effective separation of photo-induced charge

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